Preheat your oven’s broiler and line a baking sheet with parchment paper or foil.
Spread one side of each slice of bread with softened butter. Place the slices butter-side down on your work surface.
Spread Dijon mustard evenly on the unbuttered side of 4 slices of bread.
Layer 2 slices of ham on top of the mustard-coated bread. Sprinkle 1/4 cup of grated Gruyère over the ham.
Top each sandwich with the remaining slices of bread (butter-side up).
Step 3: Add the Béchamel & Broil
Spread a generous layer of béchamel sauce over the tops of the sandwiches, covering them completely.
Sprinkle the remaining Gruyère cheese evenly over the béchamel.
Place the sandwiches on the prepared baking sheet and broil for 3–5 minutes , or until the cheese is melted, bubbly, and golden brown. Watch closely to avoid burning.
Step 4: Serve
Let the sandwiches cool slightly before slicing in half diagonally.
Serve hot with a side of pickles, a simple green salad, or tomato soup for a complete meal.
Why This Recipe Works
Béchamel Sauce : Adds a creamy, rich layer that takes this sandwich beyond ordinary grilled cheese.
Gruyère Cheese : Melts beautifully and adds a nutty, savory flavor.
Broiling Magic : Creates a crispy, golden crust on the bread and cheese for irresistible texture.
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